A not so close friend once said they thought I gave my children too many expierences eg by the time they were 12 they had scuba dived, walked up mountains, had archery lessons,went caving in Slovakia, went white water rafting in Slovenia, been to loads of places of the beaten track, ice climbed in the French Alps. They said they will have nothing to look forward to.
I thought that was rubbish statement then and still think it is a rubbish statement.
Do as much as you can, take them to loads of places, have fun, take lots of photos, have a laugh, build up happy memories, all our photos are on the screen on the computer as a permament slide show which I love. Have their friends round on sleep overs and let them indulge! Watch dvds with them. House work will often wait but the seconds and minutes that they are children will soon pass.
If you make a threat stick to it so make sure your threat is reasonable. Once in the middle of a boiling hot summer DS had pushed me and pushed me so I said 'do that one more time and you are staying in for a week' God it was hell. By the fourth day he is saying ' so what did I do again mum?!' I couldn't flippin rememeber but I had made the threat!!
Be strict with manners and how they talk to you and others. Make sure they pick up after themselves even if they have left the room and you are right next to a plate or whatever call them back and get them to do it. It teaches (OK eventually it will teach -I'm still working on it!!) that you are not a skivvy to pick up after them.
Thats my adice.
Can I point out I'm not a mum of the year and think my way is best or the only way. This works for us and the other big help is what ever rule I make DH backs me up and vice versa. DH will not allow them to back chat me or be rude in anyway (They still try though!!)
HTH